Here is an inexpensive way to make a little book for the letter N:
Fold two sheets of plain white paper (8.5x11) in half, top to bottom, hamburger style. (Side to side yeilds a skinny result, known as hot dog style).

Fold again in half, staple near this new fold, and trim the original fold to separate the top edges. Now you have a book with eight blank pages. Print the letter N on the front cover, and inside write the following words, one per page:
- neck
- nose
- nut
- nap
- nine
- nest
- number

Search through magazines or newspapers to find pictures to go with each word, and glue them onto the corresponding page. (Be careful not to use too much glue so the pages don't stick together.) The result is a book that can be easily read by your child and will help connect the sight of N to its sound.

I learned the sound of the letter N
When I was just a child
I'd be heading for the staircase
And my mother, she would go wild